kernel/linux.git/tools/testing/selftests/kvm/arm64, branch v7.2-rc5

KVM: arm64: selftests: Add MMIO sign-extending load test

2026-07-06T16:18:34+00:00

Add a test for sign-extending MMIO loads (LDRSB, LDRSH, LDRSW) into Xt and Wt destinations, with and without the sign bit set. The host supplies the MMIO data and checks the guest register holds the sign-extended value. Repeat the loads big-endian on a mixed-endian implementation. Issue those at EL0: SCTLR_EL1.EE would make an EL1 load big-endian but also walk the little-endian page tables big-endian, whereas SCTLR_EL1.E0E selects only EL0 data endianness and leaves the walk little-endian. Signed-off-by: Fuad Tabba Link: https://patch.msgid.link/20260706115522.954913-3-fuad.tabba@linux.dev Signed-off-by: Marc Zyngier

KVM: arm64: selftests: Improve error handling for GICv5 PPI selftest

2026-05-23T14:07:41+00:00

Cases where the KVM_RUN ioctl returned an error were wrongly reported as incorrect ucalls. Furthermore, potential failures when calling KVM_IRQ_LINE were being hidden. Improve the error handling to correctly propagate the error in both cases. Fixes: 0a9f38bf612b ("KVM: arm64: selftests: Introduce a minimal GICv5 PPI selftest") Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com Signed-off-by: Sascha Bischoff Link: https://lore.kernel.org/r/20260520091949.542365-15-maz@kernel.org Signed-off-by: Marc Zyngier

KVM: arm64: selftests: Cleanup unused vars in GICv5 PPI selftest

2026-05-23T14:07:41+00:00

Clean up a set of unused variables around the size of the guest's PA space as they are completely irrelevant for GICv5 when only considering PPIs. Fixes: 0a9f38bf612b ("KVM: arm64: selftests: Introduce a minimal GICv5 PPI selftest") Link: https://sashiko.dev/#/patchset/20260319154937.3619520-1-sascha.bischoff%40arm.com Signed-off-by: Sascha Bischoff Link: https://lore.kernel.org/r/20260520091949.542365-14-maz@kernel.org Signed-off-by: Marc Zyngier

KVM: arm64: selftests: Add missing GIC CDEN to no-vgic-v5 selftest

2026-05-23T14:07:41+00:00

The selftest mistakenly omitted the GIC CDEN instruction from the testing. Add it in. Fixes: ce29261ec648 ("KVM: arm64: selftests: Add no-vgic-v5 selftest") Reviewed-by: Joey Gouly Signed-off-by: Sascha Bischoff Link: https://lore.kernel.org/r/20260520091949.542365-13-maz@kernel.org Signed-off-by: Marc Zyngier

Merge tag 'kvm-x86-selftests_kernel_types-7.1' of https://github.com/kvm-x86/linux into HEAD

2026-04-27T08:24:41+00:00

KVM selftests type renames for 7.1 Renames types across all KVM selftests to more closely align with types used in the kernel: vm_vaddr_t -> gva_t vm_paddr_t -> gpa_t uint64_t -> u64 uint32_t -> u32 uint16_t -> u16 uint8_t -> u8 int64_t -> s64 int32_t -> s32 int16_t -> s16 int8_t -> s8 Using the kernel's preferred types eliminates a source of friction for many contributors, as the majority of KVM selftests contributions come from kernel developers. The kernel names are also shorter, which allows for more concise code, and in any many cases eliminates newlines thanks to shorter types and parameter names. Rename variables and parameters as well as types, e.g. gpa instead of paddr, to again align with the kernel, and in a few cases to remove ambiguity, e.g. where paddr is used to refer to a _host_ physical address.

KVM: selftests: Replace "paddr" with "gpa" throughout

2026-04-20T21:54:17+00:00

Replace all variations of "paddr" variables in KVM selftests with "gpa", with the exception of the ELF structures, as those fields are not specific to guest virtual addresses, to complete the conversion from vm_paddr_t to gpa_t. No functional change intended. Link: https://patch.msgid.link/20260420212004.3938325-20-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Replace "vaddr" with "gva" throughout

2026-04-20T21:54:17+00:00

Replace all variations of "vaddr" variables in KVM selftests with "gva", with the exception of the ELF structures, as those fields are not specific to guest virtual addresses, to complete the conversion from vm_vaddr_t to gva_t. Opportunistically use gva_t instead of u64 for relevant variables, and fixup indentation as appropriate. No functional change intended. Link: https://patch.msgid.link/20260420212004.3938325-17-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Clarify that arm64's inject_uer() takes a host PA, not a guest PA

2026-04-20T21:54:17+00:00

Rename inject_uer()'s @paddr to @hpa to make it more obvious that it injects an error using a host PA, not a guest PA. No functional change intended. Link: https://patch.msgid.link/20260420212004.3938325-16-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Rename translate_to_host_paddr() => translate_hva_to_hpa()

2026-04-20T21:54:17+00:00

Rename arm64's translate_to_host_paddr() to translate_hva_to_hpa() and update variable names to match, as using "vaddr" and "paddr" terminology is super confusing due to selftests using those exact names for *guest* addresses. Opportunisitically drop superfluous local page_addr and paddr variables. No functional change intended. Link: https://patch.msgid.link/20260420212004.3938325-15-seanjc@google.com Signed-off-by: Sean Christopherson

KVM: selftests: Drop "vaddr_" from APIs that allocate memory for a given VM

2026-04-20T21:54:17+00:00

Now that KVM selftests use gva_t instead of vm_vaddr_t, drop "vaddr_" from the core memory allocation APIs as the information is extraneous and does more harm than good. E.g. the APIs don't _just_ allocate virtual memory, they allocate backing physical memory and install mappings in the guest page tables. And as proven by kmalloc() and malloc(), developers generally expect that allocations come with a working virtual address. Opportunistically clean up the function comment for vm_alloc(), and drop the misleading and superfluous comments for its wrappers. No functional change intended. Link: https://patch.msgid.link/20260420212004.3938325-12-seanjc@google.com Signed-off-by: Sean Christopherson